Types of Acne and What Actually Causes Breakouts
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Acne is more than an occasional pimple. It occurs when hair follicles become clogged with oil and dead skin cells, often leading to inflammation. Breakouts can appear as whiteheads, blackheads, red bumps, pus-filled spots, or deeper, painful lesions. Understanding the types of acne can help you recognize your breakouts and choose suitable skincare. Acne affects both teenagers and adults, so sudden breakouts are not always linked to changes in your skincare routine. SHAY's skin consultation and quiz tools can help identify suitable products.
The Main Types of Acne You Should Know About
Acne does not look the same for everyone. Some people mainly develop clogged pores, while others experience inflamed or painful breakouts. Knowing the difference can make it easier to understand your skin and recognize when professional care may be needed.
Whiteheads, Blackheads, Papules, Pustules, Nodules and Cysts Explained
Whiteheads are closed clogged pores. They develop when oil and dead skin cells block a hair follicle, creating a small, flesh-colored or whitish bump on the skin.
Blackheads are open clogged pores. The dark appearance does not mean the pore contains dirt. The material inside the pore reacts with oxygen and becomes dark. Both whiteheads and blackheads are considered non-inflammatory acne.
Papules are small, raised, red or pink bumps that develop when clogged pores become inflamed. They usually do not contain visible pus.
Pustules are inflamed bumps containing pus. They often appear red around the base with a white or yellow center. Picking or squeezing them can increase inflammation and may increase the risk of marks or scarring.
Nodules are larger, firm and painful lumps that develop deeper within the skin. They can feel hard to the touch and may take longer to clear.
Cysts are also deep, painful lesions but are generally filled with pus. Nodules and cysts are more serious forms of inflammatory acne and can increase the risk of permanent scarring. The American Academy of Dermatology notes that deep, painful nodules and cysts should be evaluated by a dermatologist rather than repeatedly treated by squeezing or picking them at home.
These are some of the most commonly discussed types of acne, but not every bump on the face is necessarily acne. Other skin conditions can look similar, which is one reason persistent or unusual breakouts may require professional evaluation.
What Causes Acne: The Real Triggers Behind Breakouts?
Understanding what causes acne begins with clogged hair follicles, excess oil, dead skin cells, and inflammation. Hormonal changes, genetics, medications, lifestyle, and skincare habits can also contribute to breakouts.2 Harsh products may irritate acne-prone skin, while heavy or pore-clogging formulas and certain hair products can worsen breakouts. Washing your face excessively is not the solution; gentle, consistent skincare is important.
Cetaphil's acne and blemish range includes products such as Cetaphil Pro Oil Control Foam Wash, Cetaphil Gentle Exfoliating SA Cleanser, Oily Skin Cleanser, Gentle Exfoliating SA Lotion and Daily Advance Ultra Hydrating Lotion. Its product range is categorized for concerns such as acne and blemishes and skin types, including acne-prone, oily, and combination skin.
Acne Causes Linked to Diet, Stress and Skincare Habits
Diet, stress, and skincare habits can all influence breakouts, but they do not affect everyone in the same way. Understanding these possible acne causes can help you make practical changes without unnecessarily restricting your lifestyle.
- Diet: Some research suggests high-glycemic foods may worsen acne in some people. Cow’s milk has also been linked with acne in some studies, but more research is needed.
- Stress: Stress may influence hormones and potentially worsen existing acne, but it is not the only cause of breakouts.
- Skincare habits: Aggressive scrubbing, picking pimples, over-exfoliating, or frequently changing products can irritate skin and worsen breakouts.
- Daily routine: Use a gentle cleanser, choose products suited to your skin type, and avoid squeezing or picking active pimples.
Hormonal Acne: A Type That Needs a Different Approach
Hormones can have a significant effect on oil production, which is why acne often begins around puberty.3 However, hormonal changes can continue to influence acne during adulthood. The AAD notes that some adults continue to experience acne into their 30s, 40s and 50s.
Hormonal acne may be particularly noticeable around certain points in the menstrual cycle. Some people also notice recurring breakouts around the lower face, jawline, and chin. However, the location of acne alone cannot confirm that it is hormonal.
Adult acne can also have several causes at the same time. Changes in hormones, medications, skincare products, stress, and other factors may contribute to breakouts. Therefore, assuming every adult pimple is hormonal can lead to the wrong approach.
How to Tell If Your Breakouts Are Hormonal?
There is no simple at-home test that can confirm hormonal acne. One useful clue is a consistent pattern. If breakouts repeatedly appear around the same time during your menstrual cycle, particularly around the lower face, hormones may be contributing.
Recurring, deep or painful acne can also be a reason to speak with a dermatologist. A professional can assess whether the breakouts are acne and determine whether hormonal factors or another condition may be involved.
Cetaphil's AI Skin Analysis Tool provides another way to understand your skin. According to Cetaphil, the tool uses a selfie to scan and analyze the skin before providing a personalized skin analysis report and skincare routine recommendations. Cetaphil also clearly states that the tool is for illustrative purposes and provides indicative suggestions, so it should not be treated as a medical diagnosis.
Frequently Asked Questions About Acne and Its Causes
What are the different types of acne and how do they look?
The main types of acne include whiteheads, blackheads, papules, pustules, nodules and cysts. Whiteheads and blackheads are clogged pores, while papules and pustules are inflamed. Nodules and cysts develop deeper in the skin and are usually more painful. Deep acne has a higher risk of scarring and may require dermatological treatment.
What causes acne to suddenly appear on clear skin?
Several acne causes can lead to a sudden breakout. Hormonal changes, stress, new skincare or hair products, certain medications and changes in lifestyle can all play a role. Diet may also influence acne in some people. A sudden breakout does not necessarily mean your skin is unhealthy or that you have done something wrong.
Are acne causes different for teenagers and adults?
The basic processes behind acne are similar at different ages, but the factors influencing breakouts can differ. Acne commonly begins during puberty because hormonal changes increase oil production. Adults can continue to experience acne because of hormonal fluctuations, medications, stress and other factors. Adult acne is common and can persist well beyond the teenage years.
How do you know if you have hormonal acne?
Recurring breakouts that follow a predictable menstrual-cycle pattern may suggest hormonal acne, especially when they involve deeper, inflamed spots around the lower face. However, these signs alone cannot confirm the cause. A dermatologist can assess persistent or severe acne and determine whether hormonal factors may be involved.
Can diet alone cause acne breakouts?
Diet alone is unlikely to explain every breakout. Research suggests that high-glycemic foods may worsen acne for some people, while some studies have found a connection between cow's milk and acne. However, the evidence is not conclusive for everyone. Diet should therefore be considered one possible factor rather than the only explanation for what causes acne.
When should acne be treated by a dermatologist instead of at home?
Consider seeing a dermatologist if your acne is deep, painful, widespread, persistent, leaving scars or not improving with appropriate skincare. Nodules and cysts are particularly important to address because they can cause permanent scarring. A dermatologist can also determine whether persistent bumps are actually acne or another skin condition.